Results 11 to 20 of about 97,324 (334)

Output-constrained individual pitch control methods using the multiblade coordinate transformation: trading off actuation effort and blade fatigue load reduction for wind turbines [PDF]

open access: goldWind Energy Science
Individual pitch control (IPC) has been thoroughly researched for its ability to reduce wind turbine blade and tower fatigue loads. Conventional IPC often uses the multiblade coordinate (MBC) transformation and aims for full attenuation of the ...
J. I. S. Hummel, J. Kober, S. P. Mulders
doaj   +2 more sources

Relevance of aerodynamic modelling for load reduction control strategies of two-bladed wind turbines

open access: diamondJournal of Physics: Conference Series, 2014
A new load reduction concept is being developed for the two-bladed prototype of the Skywind 3.5MW wind turbine. Due to transport and installation advantages both offshore and in complex terrain two-bladed turbine designs are potentially more cost-effective than comparable three-bladed configurations.
B Luhmann, P W Cheng
openaire   +2 more sources

Numerical Investigation on Performance of Innovative Wind Turbine Blades for Loads Reduction [PDF]

open access: green, 2011
There is an increased interest in the study of swept-blade wind turbine rotors in order to increase energy capture without an increase in the turbine loads; at the same time, a swept-blade geometry is less sensitive to wind gusts and so, more tolerant for fatigue loads.
Grasso, F., Maggio, T.
openaire   +1 more source

Closed-Loop Control Wind Tunnel Tests on an Adaptive Wind Turbine Blade for Load Reduction

open access: closed46th AIAA Aerospace Sciences Meeting and Exhibit, 2008
Wind tunnel tests on a non-rotating, dynamically scaled wind turbine blade equipped with variable trailing edge geometry were carried out. The effectiveness of the system for active load reduction purposes, with the interaction between structural dynamics, aerodynamics and control was tested.
Barlas, A. (author)   +3 more
openaire   +4 more sources

Active flap control with the trailing edge flap hinge moment as a sensor: using it to estimate local blade inflow conditions and to reduce extreme blade loads and deflections [PDF]

open access: yesWind Energy Science, 2021
Active trailing edge flaps are a promising technology that can potentially enable further increases in wind turbine sizes without the disproportionate increase in loads, thus reducing the cost of wind energy even further.
S. Perez-Becker   +2 more
doaj   +1 more source

Performance Analysis of Ultra-Scale Downwind Wind Turbine Based on Rotor Cone Angle Control

open access: yesEnergies, 2022
The theoretical feasibility of the power output strategy based on rotor cone angle control for ultra-scale downwind wind turbines is studied in this paper via the Open FAST simulation platform.
Zhen Li   +5 more
doaj   +1 more source

Study on vibration reduction [JP2]characteristics of the B-B type turbine blade [JP]under-platform damper system considering the normal load allocation

open access: yesJournal of Hebei University of Science and Technology, 2022
In order to improve the design level of the under-platform damper of aero-engine turbine blades,a B-B type under-platform damper structure based on stiffness design was proposed by comparing with structures of the B-G (blade to ground) type damper and ...
Shangwen HE   +4 more
doaj   +1 more source

Experimental assessment of a blended fatigue‐extreme controller employing trailing edge flaps

open access: yesWind Energy, 2023
This paper presents an experimental assessment of a blended fatigue‐extreme controller for load control employing trailing edge flaps on a lab‐scale wind turbine. The controller blends between a repetitive model predictive controller that targets fatigue
Sirko Bartholomay   +6 more
doaj   +1 more source

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